PPI-109-REV. B IMPCO Technologies Inc. April, 2008
If utilizing a positive pressure to calibrate the gauge, make the connections as illustrated. If
using a negative pressure source (vacuum), connect the hose to the center nipple on the gauge.
NOTE: The applied pressure should ideally be between 50-80% of the gauge capacity.
If the gauge needs to be calibrated, insert the provided Allen wrench into the adjusting screw and
turn to make adjustments as necessary.
NOTE:
•
The cover must be installed (with o-ring) when in use. Pressure will discharge from front of
gauge without cover in place.
•
The gauge must be calibrated in the same position in which it is used—a change in orientation
may cause the needle to travel, resulting in a change of measurement.
•
A bracket can be made to hold the gauges in the upright position (see next page).
3030 South Susan St. Page 5 of 12
Santa Ana, CA 92704
www.impcotechnologies.com